Lately there is quite a lot of attention for the 8 m band (40 MHz). Transmissions are done from Ireland, UK and Denmark for example.
This band could be interesting to explore for various reasons:
The 8-meter band shares many characteristics with the neighboring 6-meter band. However, as it
is somewhat lower in frequency it does display the better propagation mechanisms
via the F2 layer normally seen at HF. Also sporadic
E-propagation is common on this band in summer.
After I performed the MARS modification, my FT-450 is able
to receive 40 MHz signals. Of course the FT-450 input filters are not designed
for this frequencies.
I am working on a 8 m bandpass filter / pre-amplifier for the FT-450 to increase the sensitivity for this band.
Hopefully I will be able to tune in into 40.680 MHz - to receive FT-8 signals - soon.
First results;
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